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CVE-2026-123025
An OS Command Injection vulnerability was discovered in the Google Cloud DNS validation module of the OPNsense os-acme-client plugin through 4.17. The DnsGcloud::prepare() method decodes the dns_gcloud_key model field and directly interpolates the string fields gcloud_account and gcloud_project into a shell command passed to proc_open() via LeUtils::run_shell_command() without any validation or escaping. A remote authenticated user with privileges to issue or renew certificates through the WebGUI/API can achieve arbitrary code execution as root.
9.4 CRITICALEPSS 0.63%Not in KEVNVD: Received
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.4 | CRITICAL | 4.0mitre (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
Details
- CVE ID
- CVE-2026-123025
- Status
- Received
- Assigner (CNA)
- mitre
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 07:17 UTC
- Weaknesses
- CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
As published by the CNA in the CVE record.
OPNsenseos-acme-client1 version range
- through 4.17.0